A pelvic nerve block procedure is an advanced, minimally invasive medical treatment designed for diagnosing and relieving chronic and complex pain in the lower pelvic area. These pains can stem from a wide variety of causes, including gynecological conditions like endometriosis, post-surgical pain in the pelvis, oncological pain related to tumors or their treatments, and various regional pain syndromes. The goal of the procedure is to temporarily or prolongedly "disconnect" or disrupt the transmission of pain signals from the affected organs in the pelvis to the brain, thereby providing the patient with significant relief and improving their quality of life. The treatment is suitable for patients suffering from persistent pain that does not respond well to oral medication, or when the side effects of medications (such as opioids) are too severe.

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The procedure is performed in an interventional radiology suite under sterile conditions, usually under local anesthesia and mild sedation, so the patient is relaxed but feels no pain. The expert interventional radiologist uses advanced real-time imaging means, typically a CT scanner or X-ray fluoroscopy, to precisely identify the location of specific nerve clusters responsible for pain conduction in the relevant area of the pelvis. After identifying the target, the physician inserts a fine, long needle through the skin (in the lower back or buttocks) and carefully navigates it to the exact point near the nerve. At this stage, a mixture of anesthetic agent (for immediate relief) and steroids (to reduce inflammation and prolong the effect) is injected. In certain cases, if the pain is cancer-related, agents that cause more permanent destruction of nerve fibers (neurolysis) may be used to achieve long-term pain remission.